[105085] in North American Network Operators' Group
Re: OT: www.Amazon.com down?
daemon@ATHENA.MIT.EDU (Edward Lewis)
Sat Jun 7 10:59:07 2008
In-Reply-To: <4849F9CA.6050603@trelane.net>
Date: Sat, 7 Jun 2008 10:58:37 -0400
To: Andrew D Kirch <trelane@trelane.net>
From: Edward Lewis <Ed.Lewis@neustar.biz>
Cc: nanog@merit.edu
Errors-To: nanog-bounces@nanog.org
At 23:00 -0400 6/6/08, Andrew D Kirch wrote:
>Paul Ferguson wrote:
>> Are you looking in the right place? :-)
>>
>> %dig www.imdb.com
>>
>> ; <<>> DiG 9.3.2 <<>> www.imdb.com
>> ;; global options: printcmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 924
>> ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
>>
>> ;; QUESTION SECTION:
>> ;www.imdb.com. IN A
>>
>> ;; ANSWER SECTION:
>> www.imdb.com. 4400 IN CNAME us.imdb.com.
>> us.imdb.com. 4 IN CNAME us.dd.imdb.com.
>> us.dd.imdb.com. 16 IN A 72.21.206.70
...
>Odd, I'm seeing it now. Couldn't see it for 20-30 minutes.
>
>Andrew
I saw this problem late last night too. The problem was "downstream"
in the CNAME chain. I was able to access IMDB by using
us.dd.imdb.com (http://us.dd.imdb.com) while the www.imdb.com address
was (in some sense of the word) "broken." My local recursor got a
SERVFAIL for www.imdb.com and inserted a redirection page for it.
Using dig +trace at the time I could work my way around the issue. I
bet the recursor got most of the way there but couldn't get the A
record or something.
As it was very late for me, I didn't try to "debug" it. Just had a
burning question about I movie I had just seen. ;)
--
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Edward Lewis +1-571-434-5468
NeuStar
Never confuse activity with progress. Activity pays more.
